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Finding the Fourth Proportional to 10,169.25, 15,253.11 and 7,220.44

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Solution

The fourth proportional to 10,169.25, 15,253.11 and 7,220.44 is: 10,830.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,169.25 : 15,253.11 = 7,220.44 : x
  2. Step 2: Convert to fraction form
    10,169.25/15,253.11 = 7,220.44/x
  3. Step 3: Cross multiply
    10,169.25x = 15,253.11 × 7,220.44
  4. Step 4: Simplify right side
    10,169.25x = 110,134,184.63
  5. Step 5: Solve for x
    x = 110,134,184.63/10,169.25
  6. Step 6: Final answer
    x = 10,830.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.